JP7621681B2 - Water and fertilizer mixing equipment and water and fertilizer solution preparation production line - Google Patents

Description

The present invention relates to the technical field of agricultural machinery, specifically to a water and fertilizer mixing device and a production line for preparing water and fertilizer solutions.

The descriptions in this specification merely provide background art related to the present invention and do not necessarily constitute prior art.

When preparing a water-fertilizer solution, it is necessary to mix fertilizer and water. At present, a certain amount of fertilizer is directly dissolved in water to mix fertilizer and water. The inventor discovered that when a certain amount of material is directly dissolved in water, the dissolution speed is slow, which is likely to cause problems such as incomplete dissolution and uneven concentration of the solution, but after the material is ground and powdered, the speed is fast and it is easy to dissolve in water. During grinding, due to the extrusion, shearing and grinding of the processed material for a long time in the processing process of the grinding roller, the surface temperature of the grinding roller will gradually increase, not only destroying the composition of the material, but also causing the material to adhere to the surface of the grinding roller due to scorching, and finally the grinding roller will not be ground normally and the service life of the grinding equipment will be shortened. Therefore, how to effectively reduce the temperature of the grinding roller surface is the top priority.

At present, water cooling devices are mainly used to reduce the temperature of the surface of the polishing roller, thereby reducing the temperature of the material being polished. The structure is to run cold water inside the polishing roller to remove heat. This type of water cooling device can reduce the temperature of the material being polished and the assembly between various components is more convenient, but the inventor found that the material is polished continuously between the polishing rollers in this way, and continues to be in a polishing state, there is no buffer gap, and the heat dissipation effect is not good. Another cooling method is to add a heat dissipation device to reduce the temperature, which is expensive, while the heat dissipation device is always outside the polishing machine, and there is no way to realize direct heat dissipation.

In the water and fertilizer solution preparation production line, there is currently a problem of inaccurate concentration of water and fertilizer solution, and the effective utilization rate of chemical fertilizer is low. At the same time, excessive use of chemical fertilizer may lead to problems such as accumulation of heavy metal pollution, reduced microbial activity, difficulty in nutrient conversion and utilization, nutrient imbalance, salt accumulation, and acid-base balance disorders.

There are generally the following methods for controlling the concentration of the solution. The first is that the servo motor directly controls the amount of solution fed, and when the solution is needed, the servo motor works, and the total amount of solution fed is obtained according to the flow rate and flow rate of the pipeline, and the inventor found that the disadvantage of this method is that the amount of solution controlled by this device is inaccurate, which leads to an inaccurate concentration of the prepared solution. The second is to use a device such as a concentration sensor to detect the concentration of the solution after the solution is prepared, and the inventor found that when this device is working, when the nutrient solution is being diluted, operations such as stirring are often required so that the concentration of the solution in the tank can be kept constant, and while the sensor is sending information, the whole device is working, so that the concentration of the solution will eventually change. The third is to use a valve to control the flow rate feed, and the inventor found that this method is also calculated by the flow rate of the solution in the pipeline and the time, and when a more accurate amount of solution is needed, the thickness of the pipeline needs to be changed, and if the pipeline is too thin, a series of problems such as clogging will occur.

Chinese Patent Publication No. 108432603

The present invention aims to overcome the shortcomings of the prior art and provide a fertilizer polishing device that ensures good heat dissipation effect during polishing.

To achieve the above objectives, the present invention employs the following technical solutions:

In a first aspect, an embodiment of the present invention provides a fertilizer grinding mechanism including a material receiving body, a connecting body and an inner grinding block, the material receiving body has a first channel arranged vertically at an edge of the material receiving body, the connecting body is fixed to the bottom of the material receiving body, a second channel communicating with the first channel is provided, the bottom of the second channel is connected to a buffer recess, a driving block is provided in the buffer recess, the driving block is connected to a drive mechanism for driving the radial movement of the connecting body, the inner grinding block is fixed to the bottom of the connecting body, a grinding roller that can move vertically is provided outside the inner grinding block, the driving block pushes the fertilizer that has fallen into the buffer recess into a gap between the inner grinding block and the grinding roller, and the fertilizer can be ground by the vertical movement of the grinding roller.

Optionally, the drive mechanism includes a propulsion column, an upper end of the propulsion column connected to a first vertical drive member, the propulsion column hinged to one end of a pull rod, the other end of the pull rod hinged to a propulsion block, and a lower end of the propulsion column capable of contacting the propulsion block via an arcuate surface such that vertical movement of the propulsion column can be translated into movement of the propulsion block along the radial direction of the connecting body.

Optionally, a second vertical drive member is fixed to the outer peripheral surface of the connection body, the second vertical drive member is connected to the polishing roller frame body, and the polishing roller is attached to the polishing roller frame body.

Optionally, the second vertical drive member is connected to the polishing roller frame body via a fine adjustment mechanism that drives the polishing roller frame body to move in the radial direction of the connecting body, thereby adjusting the distance between the polishing roller and the outer surface of the internal polishing body.

Optionally, the connection body and the inner grinding block are provided with interconnecting coolant flow paths.

In a second aspect, an embodiment of the present invention provides a water and fertilizer mixing device, comprising a crushing mechanism, a fertilizer grinding mechanism according to the first aspect, a bulk material mechanism and a mixing mechanism, the crushing mechanism being installed above the fertilizer grinding mechanism for crushing the fertilizer and sending the crushed fertilizer to the fertilizer grinding mechanism, the bulk material mechanism being fixed to the top of the mixing mechanism and installed below the fertilizer grinding mechanism, the bulk material mechanism being used to introduce the ground fertilizer into the mixing mechanism, and the mixing mechanism being used to mix the ground fertilizer with water.

Optionally, the bulk material mechanism adopts a shell structure, the inner polishing block extends into the interior of the bulk material mechanism, the bottom of the bulk material mechanism is an inverted cone structure, an outlet is installed at the lower end of the inverted cone structure, and the bulk material mechanism communicates with the mixing mechanism through the outlet.

In a third aspect, an embodiment of the present invention also provides a water and fertilizer solution preparation production line, which includes a water and fertilizer mixing device, a solution supplying device, and a solution diluting device as described in the second aspect, installed in sequence, the solution supplying device being capable of receiving the water and fertilizer solution delivered from the water and fertilizer mixing device and delivering the water and fertilizer solution to the solution diluting device, the solution diluting device being used to dilute the water and fertilizer solution.

Optionally, the solution supply device includes a propelling shell, the outlet of which is connected to the solution dilution device, and the supply port is connected to the water and fertilizer mixing device, a propelling member that can move along its axis is installed in the propelling shell, an elastic member is installed between the propelling member and the propelling shell, an end of the propelling member extending outside the propelling shell is in sliding contact with a lever through a first slide groove installed in the lever, one end of the lever is hingedly connected to a positioning block, and a second slide groove is installed at the other end, a hinge connection shaft is slidably connected in the second slide groove, the hinge connection shaft is hingedly connected to a first rack, and the first rack is engaged with a rotatable first gear.

Optionally, the water and fertilizer solution preparation production line also includes a nutrient solution supplying device, the nutrient solution supplying device includes a buffer container, the buffer container communicates with a discharge pipe, an extrusion assembly is installed in the buffer container, the extrusion assembly can be brought into contact with a second rack that can move vertically, the second rack can discharge the nutrient solution in the buffer container from the discharge pipe through the extrusion assembly, and the second rack is engaged with a rotatable second gear.

The beneficial effects of the present invention are as follows:
1. The polishing device of the present invention polishes the fertilizer together with the outer surface of the inner polishing block through the vertical movement of the polishing roller, so that the inner polishing block does not need to always generate friction at the same place, and the fertilizer is not always in a polishing state, which is conducive to the heat dissipation of the inner polishing block and the fertilizer, and has a good heat dissipation effect, which avoids the drawbacks of the destruction of fertilizer components due to overheating, the fertilizer sticking to the surface of the polishing roller due to scorching, and the shortening of the service life of the polishing roller.
2. The grinding device of the present invention is equipped with a driving mechanism and a driving block, and the driving mechanism can automatically supply fertilizer to the gap between the inner grinding block and the grinding roller, which has a high degree of automation and reduces the labor intensity of staff.
3. The grinding device of the present invention also has a cooling liquid flow path in the inner grinding block and the connecting block, which can be water-cooled at the same time, which further ensures the heat dissipation effect of the inner grinding block and the fertilizer.
4. In the production line of the present invention, the solution supplying device includes a first gear, a first rack, a lever, a propelling member and a propelling shell, the first gear is used to move the first rack, the water and fertilizer solution in the propelling shell is discharged through the first rack and the propelling member, the stroke of the first rack can be controlled by controlling the rotation speed of the first gear, and the amount of the water and fertilizer solution discharged from the propelling shell can be precisely controlled to avoid the waste of the solution.

The drawings in the specification forming part of this application are used to provide a further understanding of this application, and the exemplary embodiments and the description thereof are used to explain this application and do not constitute limitations of this application.

FIG. 2 is a top view of a material receiving body according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view of a material receiving body according to the first embodiment of the present invention. FIG. 2 is an axonometric projection view of a connector according to the first embodiment of the present invention. FIG. 2 is a structural schematic diagram of an inner polishing block according to Example 1 of the present invention. FIG. 2 is a structural schematic diagram of a thrust block according to the first embodiment of the present invention; FIG. 2 is a structural schematic diagram of a propulsion column according to the first embodiment of the present invention; FIG. 2 is a structural schematic diagram of a drive mechanism according to the first embodiment of the present invention. FIG. 2 is an assembly schematic diagram of a connecting body, an inner grinding block and a grinding roller according to Example 1 of the present invention. 1 is a schematic diagram of an exploded structure of a fine adjustment mechanism according to a first embodiment of the present invention; FIG. 11 is a schematic diagram of the overall structure of a second embodiment of the present invention. FIG. 6 is a structural schematic diagram of a crushing mechanism according to a second embodiment of the present invention. FIG. 4 is a structural schematic diagram of a mixing mechanism according to Example 2 of the present invention. FIG. 4 is a structural schematic diagram of a bulk material mechanism according to Example 2 of the present invention. FIG. 5 is a structural schematic diagram of a production line according to a third embodiment of the present invention. FIG. 11 is a schematic structural diagram of a solution supplying device according to a third embodiment of the present invention. FIG. 11 is a structural schematic diagram of a propellant member according to a third embodiment of the present invention; FIG. 11 is a schematic diagram of a lever structure according to a third embodiment of the present invention. FIG. 11 is a schematic diagram of the operation principle of a solution supplying device according to a third embodiment of the present invention. FIG. 11 is a schematic structural diagram of a nutrient solution supplying device according to a third embodiment of the present invention. FIG. 11 is a cross-sectional view of a nutrient solution supplying device according to a third embodiment of the present invention. FIG. 11 is a schematic diagram of the structure of a supply auxiliary block according to a third embodiment of the present invention; FIG. 5 is a structural schematic diagram of a buffer container according to a third embodiment of the present invention. FIG. 11 is a schematic diagram of a structure of a supply plate according to a third embodiment of the present invention; FIG. 11 is a structural schematic diagram of a traveling mechanism according to a third embodiment of the present invention. FIG. 11 is a diagram illustrating the operation principle of a nutrient solution supplying device according to a third embodiment of the present invention.

Example 1
This embodiment discloses a fertilizer polishing mechanism II, which includes a material receiving body II-1, a connecting body II-2, and an inner polishing block II-5, which are arranged vertically in order. A polishing roller that can move vertically is installed on the outside of the inner polishing block. The material receiving body is used to receive the fertilizer to be polished and supply the fertilizer to the connecting body. After the fertilizer falls along the connecting body, it enters the space between the inner polishing block and the polishing roller, and the fertilizer can be polished by the up and down movement of the polishing roller.

As shown in Figures 1-2, the material receiving body is a cylindrical structure, and there is an inverted cone-shaped steel plate on the top, which is convenient for collecting fertilizer in the connection body, and a number of first channels II-1-1 are installed on the edge of the connection body, in this embodiment, four first channels are installed, the four first channels are uniformly distributed along the circumference, the axis of the first channel is installed vertically, and is used to transport fertilizer into the connection body, and the upper surface of the connection body on the outer periphery of the first channel is a material guide surface II-1-3 inclined toward the first channel to allow fertilizer to flow into the first channel, and the material guide surface is connected to the mounting surface II-1-2, and the mounting surface is used to connect the connection body and the upper equipment. A threaded connection hole II-1-4 is installed in the lower center of the connection body.

As shown in FIG. 3, the connection body also adopts a cylindrical structure, the upper surface of which is fixed to the lower surface of the material receiving body, and a plurality of second channels II-2-4 with vertical axes are installed at the edge positions of the connection body, the second channels communicate with the first channel, in this embodiment, four of the second channels are also installed, four partition blocks II-2-2 are installed at the bottom of the connection body, buffer recesses II-2-3 communicating with the second channels are formed between adjacent partition blocks, a cooling liquid flow path II-2-1 is installed in the connection body and the partition block, and a cooling liquid can be introduced into the cooling liquid flow path.

Fertilizer in the first channel within the material supply body can enter the buffer recess from the second channel and be stored there.

As shown in Figure 4, the inner grinding block is a cube block, the upper surface of which is fixed to the lower surface of the partition block of the connecting body, and four grooves II-5-1 are drilled on the upper surface of the inner grinding block, the positions of which correspond to the positions of the buffer recesses, and together with the buffer recesses, a cavity for storing fertilizer is formed. Coolant flow paths II-5-2 aligned with the coolant flow paths of the partition block are pierced through the upper and lower end surfaces of the inner grinding block, and are used to introduce coolant into the inner grinding block.

A thrust block II-4 is installed in the cavity formed by the buffer recess and the groove, and the thrust block is connected to a drive mechanism. The drive mechanism drives the thrust block to move it in the radial direction of the connection body, thereby pushing the fertilizer stored in the cavity into the space between the inner grinding block and the grinding roller.

As shown in Figure 5, the thrust block has an L-shaped structure including a vertical section and a horizontal section, with a hinge connection plate II-4-1 installed on the inner surface of the vertical section, and the end surface of the horizontal section being an arc surface.

As shown in FIG. 7, the drive mechanism includes a first vertical drive member, and in this embodiment, the first vertical drive member adopts a cylinder II-8 with a vertical axis, the upper part of which is fixedly connected to the material receiving body through a threaded connection hole at the lower part of the material receiving body, and the piston rod of the cylinder is fixedly connected to the upper end of the propulsion column II-3 through a mounting hole II-3-1 at the upper end of the propulsion column, and the cylinder can drive the propulsion column to move up and down, and both the cylinder and the propulsion column are arranged in a cylindrical cavity in the center of the connection body, and at the same time, a cylindrical cavity for the up and down movement of the propulsion column is also installed in the center of the inner grinding block.

As shown in Figure 6, the upper end of the propulsion column is hinged to one end of the die rod, and the other end of the die rod is hinged to the propulsion block via a hinge connection plate. At the same time, the bottom surface of the propulsion column is a hemispherical surface II-3-2.

The cylinder drives the propulsion column to move downward, and when the hemispherical surface and the arc surface come into contact, the propulsion block is driven to move outward along the radial direction of the connecting body, and then the fertilizer in the cavity formed by the buffer recess and the groove is pushed out, and the cylinder drives the propulsion column to move upward, and the propulsion block is reset by the action of the tie rod, and the fertilizer can be refilled in the cavity formed by the buffer recess and the groove.

As shown in FIG. 8, the polishing roller II-6 is installed on the outside of all four sides of the inner polishing block, and in this embodiment, two polishing rollers distributed vertically are installed on the outside of each side of the inner polishing block, where the diameter of the upper polishing roller is larger than that of the lower polishing roller, and the diameter of the upper polishing roller is slightly larger, so that the fertilizer can be polished more completely.

All of the polishing rollers are rotatably connected to the polishing roller bracket, and the polishing roller bracket is connected to a second vertical movement drive member, which drives the polishing rollers via the polishing roller bracket to move them vertically up and down.

The polishing roller bracket also has a baffle installed to prevent the polished fertilizer from spreading outside.

In this embodiment, the second vertical movement drive member is a rodless cylinder, and the rodless cylinder is fixed to the outer surface of the connection body via the cylinder connection hole II-2-5.

The rodless cylinder was connected to the grinding roller bracket via fine adjustment mechanism II-10 to realize the adjustment of the distance between the grinding roller and the side of the inner grinding block and meet the grinding requirements of fertilizers with different particle sizes.

As shown in FIG. 9, in this embodiment, the fine adjustment mechanism includes a screw, which is fixedly connected to the driving part of the rodless cylinder, and an adjustment groove is installed on the upper part of the polishing roller bracket along the radial direction of the connection body, the screw passes through the adjustment groove, and fixing nuts are installed above and below the adjustment groove on the screw, and the polishing roller bracket and the screw are locked and fixed through the fixing nuts, and the connecting shaft II-10-1 is also fixed to the polishing roller bracket, and the end face of one end of the connecting shaft close to the screw is an inclined surface that is at a set angle with the axis of the connecting shaft, and the thread bolt II-10-2 is connected to the thread at the bottom of the screw, and the fine adjustment block II-10-3 is rotatably connected to the thread bolt, and the fine adjustment block has an inclined surface and contacts the inclined surface of the connecting shaft through the inclined surface.

When the position of the grinding roller needs to be fine-tuned, loosen the fixing nut and turn the threaded bolt, so that the threaded bolt moves along the axial direction of the screw, and at the same time, because the contact surface between the threaded fine-tuning block and the connecting shaft is an inclined surface, the fine-tuning block drives the connecting shaft and the grinding roller bracket to move in the radial direction of the connecting body, thereby adjusting the distance between the grinding roller and the side of the inner grinding block, and after the set distance is reached, simply retighten the fixing nut.

The operating principle of the polishing mechanism in this embodiment is as follows:

The material receiving body receives the fertilizer to be polished, and due to the flow dividing effect of the material guide surface, the fertilizer enters the first channel, falls through the first channel, enters the second channel of the connecting body, and then enters the buffer recess through the second channel. The cylinder drives the propulsion column to descend, and the propulsion column drives the propulsion block to move outward along the radial direction of the connecting body, pushing the fertilizer in the buffer recess into the space between the polishing roller and the side of the inner polishing block. The rodless cylinder moves the polishing roller up and down to polish the fertilizer, and the polished fertilizer falls from the gap between the polishing roller and the inner polishing block.

The inner grinding block does not need to constantly generate friction in the same place, and the fertilizer is not constantly in a grinding state, which is helpful for heat dissipation from the inner grinding block and fertilizer, and has a good heat dissipation effect, which avoids the drawbacks of overheating causing the destruction of fertilizer components and scorching causing the fertilizer to adhere to the surface of the grinding roller, shortening the service life of the grinding roller, and at the same time, coolant can be introduced into the coolant flow path of the inner grinding block and the connecting body, further ensuring the heat dissipation effect.

Example 2:
This embodiment discloses a water and fertilizer mixing device for mixing fertilizer and water to form a water and fertilizer mixed solution, and includes the fertilizer polishing mechanism described in embodiment 1, as shown in FIG. 10, and the fertilizer polishing mechanism is fixed by bracket II-11.

A crushing mechanism I is installed above the fertilizer polishing mechanism, and as shown in FIG. 11, the crushing mechanism includes a first housing I-5, the bottom of which is open, and a filter screen I-6 is installed. The filter screen is welded and fixed to the mounting surface on the top of the material receiving body, so that fertilizer that falls from the filter screen can enter the material receiving body.

A crushing shaft I-4 is installed inside the first housing, and a crushing blade is fixed to the crushing shaft. The crushing shaft is connected to a motor I-1 located above the first housing via a coupling I-2, and the motor drives and rotates the crushing shaft to further crush the fertilizer inside the first housing. A material supply pipe I-3 that communicates with the internal space of the first housing is also installed at the top of the first housing to add the fertilizer to be crushed into the first housing.

A mixing mechanism is installed below the inner grinding block, and a bulk material structure is connected to the top of the mixing mechanism. The ground fertilizer dropped by the fertilizer grinding mechanism can be introduced into the mixing mechanism through the bulk material mechanism, and the mixing mechanism is used to mix and stir the fertilizer and water to form a water-fertilizer solution.

As shown in FIG. 13, the bulk material mechanism II-7 adopts a housing structure, and an inverted cone-shaped housing is installed at its bottom. The inverted cone-shaped shell is connected to the supply port of the mixing mechanism to form an outlet II-7-2, which is used to introduce the fertilizer after grinding into the mixing mechanism. A cooling water pipe mounting plate is also connected to the inside of the bulk material mechanism through a connection plate. The cooling water pipe mounting plate is in close contact with the underside of the inner grinding block, and a cooling water pipe II-7-1 is installed on the cooling water pipe mounting plate. The cooling water pipe is aligned with the cooling liquid flow path of the inner grinding block, so that the cooling liquid flowing out from the cooling liquid flow path can be sent to the mixing mechanism.

As shown in FIG. 12, the mixing mechanism III includes a second housing VI-1, a supply port is installed at the top of the second housing, and the second housing is fixed to a bracket via a support block VI-12. An agitator shaft VI-5 is installed inside the second housing, and multiple groups of long agitator blades VI-4 and short agitator blades VI-3 are alternately installed on the agitator shaft along its axial direction. Here, the length only means that the length of the long agitator blade is greater than the length of the short agitator blade, and does not limit its size.

Agitator frame VI-2 is installed on the outside of the long and short agitator blades, and an agitator frame rotating shaft is installed at the bottom of the agitator frame, which is rotatably connected to the bottom of the second housing via a bearing.

The rotating shaft of the stirring frame is connected to the first bevel gear VI-13, and the stirring shaft is connected to the second bevel gear VI-7 after passing through the rotating shaft of the stirring frame, and the first bevel gear and the second bevel gear are arranged up and down, and the first bevel gear and the second bevel gear are all meshed with the third bevel gear VI-6, and respectively mesh with the upper and lower parts of the third bevel gear, and the third bevel gear is connected to the motor VI-9 through the coupling VI-8, and the motor drives the first bevel gear and the second bevel gear to rotate through the third bevel gear, and then drives the stirring shaft and the stirring frame to rotate in the opposite direction, and the long stirring blade, the short stirring blade, and the stirring frame are used to stir and mix the water and fertilizer in the second housing.

A drainage pump II-12 is installed on the top of the second housing, the drainage pump's water supply pipe II-13 is connected to the internal space of the second housing, and the drainage pump's outlet pipe is connected to the cooling liquid flow path of the connection body. In this embodiment, two drainage pumps are installed, with the outlet pipe of one drainage pump connected to six cooling liquid flow paths and the outlet pipe of the other drainage pump connected to the other six cooling liquid flow paths.

The drain pump II-12 can send the water and fertilizer solution in the second housing to a coolant flow path, which is used as a cooling medium when grinding the fertilizer, and the water and fertilizer solution flowing out of the coolant flow path can flow back into the second housing through the coolant pipe of the bulk material mechanism.

The second housing is further connected to a drainage pump VI-10 via an outflow pipe VI-11, which allows the stirred water and fertilizer solution in the second housing to be pumped out of the outflow pipe and into the next process.

The operating principle of the water and fertilizer mixing device in this embodiment is as follows:

Fertilizer is added into the first housing through the material supply pipe, the crushing shaft rotates, and the crushing blade crushes the fertilizer. The crushed fertilizer enters the fertilizer polishing mechanism through the filtering action of the filter net, the fertilizer polishing mechanism polishes the fertilizer, and the polished fertilizer enters the mixing mechanism through the bulk material mechanism. A set amount of water is added in advance into the second housing. After the polished fertilizer enters the water, the stirring shaft and the stirring frame rotate in the opposite direction to stir the water and fertilizer, dissolving the fertilizer in the water to form a water and fertilizer solution. After stirring for a set time, the drainage pump VI-10 pumps out the water and fertilizer solution that has been mixed, and enters the next process.

Example 3
This embodiment discloses a water and fertilizer solution preparation production line, which includes the water and fertilizer mixing device described in embodiment 2, a solution supplying device IV, and a solution diluting device VI, which are installed in sequence, as shown in FIG.

The water and fertilizer mixing device is connected to a solution supplying device via a pipeline, and the solution supplying device is connected to a solution diluting device via a pipeline, and the water and fertilizer mixing device sends the mixed water and fertilizer solution to the solution supplying device, and the solution supplying device sends a set amount of water and fertilizer solution to the solution diluting device for dilution.

The structure of the solution dilution device is completely the same as that of the mixing mechanism, with the only difference being that there is no need to install a drain pump on top of the second housing, which will not be described further here.

The production line also includes a nutrient liquid supplying device for adding a set amount of nutrient liquid to the solution supplying device.

As shown in FIG. 15, the solution supply device includes a propulsion shell IV-6, in which a propulsion member IV-8 that can move along the axial direction of the propulsion shell is installed. As shown in FIGS. 16-17, the propulsion member includes a propulsion piston IV-8-1 installed in the propulsion shell, the propulsion piston is connected to a piston rod IV-8-2, the piston rod extends outside the propulsion shell, and a number of reinforcing plates IV-8-3 are installed between the propulsion piston and the piston rod. A baffle IV-8-4 is installed on the portion of the piston rod that extends outside the propulsion shell, and an elastic member is installed between the baffle and the end of the propulsion shell, and the elastic member is a spring IV-9.

The end of the piston rod that extends outside the propulsion shell has a hemispherical structure, which is in sliding contact with the lever via the first slide groove IV-7-2 installed in the lever IV-7, and the hemispherical structure is in sliding contact with the bottom groove surface of the first slide groove.

One end of the lever is hinged to the positioning block via hinge connection hole IV-7-1, and the other end of the lever is provided with a second slide groove IV-7-3, a hinge connection shaft passes through the second slide groove, and the hinge shaft is hinged to one end of a first rack IV-10, the first rack meshes with a first gear IV-15, the first gear is connected to a worm gear shaft, a worm gear IV-14 is connected to the worm gear shaft, the worm gear meshes with a worm IV-13, and the worm is connected to a motor IV-11 via a coupling IV-12.

The propulsion piston divides the internal space of the propulsion shell into a rod cavity and a rodless cavity, the rod cavity being the cavity in which the piston rod is located. The rodless cavity is connected to a solution supply pipeline IV-1, and the rodless cavity is also connected to a solution buffer tank IV-2 via a pipeline. The solution buffer tank is installed directly above the propulsion shell, and a solenoid valve IV-3 and a flow meter IV-4 are attached to the pipeline between the solution buffer tank and the propulsion shell. The solution buffer tank is connected to the drainage pump VI-10 of the mixing mechanism via a pipeline, and a liquid level sensor is also installed in the solution buffer tank.

The solution supply device also includes a supply auxiliary mechanism IV-16, which includes an auxiliary frame body to which a plurality of rotating rollers are rotatably connected, and which contact the underside of the first rack to support the first rack.

The operating principle of the solution supply device in this embodiment is as follows:

As shown in FIG. 18, the water and fertilizer mixing device injects the water and fertilizer solution into the solution buffer tank through the drainage pump, the solenoid valve opens, the water and fertilizer solution enters the inside of the propelling shell, when the flow meter cannot detect the flow rate, it proves that the water and fertilizer solution in the propelling shell is full, closes the solenoid valve, the motor drives the first gear through the worm gear to rotate, the first gear drives the first rack to move, the first rack drives the piston rod and the propelling piston through the lever to move along the axial direction of the propelling shell, and pushes the water and fertilizer solution in the propelling shell out of the solution transport pipeline, by controlling the rotation speed of the first gear, the moving distance of the first rack is controlled, and then the moving distance of the propelling piston is controlled to control the amount of the water and fertilizer solution discharged, so as to realize accurate control of the discharge amount of the water and fertilizer solution.

When the first rack returned to its initial position, the piston rod and the thrust piston returned to their original positions due to the action of the spring, so that the piston rod always contacted the lever via the first slide groove.

As shown in Figures 19 to 24, the nutrient solution supplying device includes a solution buffering mechanism V-3, the bottom of which is connected to a rotation mechanism V-4, which is connected to a running mechanism V-5, and a microfeed mechanism V-1 and a microfeed mechanism rotation mechanism V-2 are installed on top of the solution buffering mechanism.

The solution buffer mechanism includes a buffer container V-3-3, and a center column V-3-3-2 is installed in the center of the buffer container. The center column is connected to one end of multiple solution baffles V-3-3-1, and the other end of the solution baffle is fixed to the inner wall of the buffer container. The solution baffles are used to divide the internal space of the buffer container into multiple chambers and store various types of nutrient solutions. In this embodiment, four solution baffles are installed, and the included angle between adjacent solution baffles is 90°, dividing the buffer container into four chambers.

Inside each chamber, a supply plate V-3-2 is installed, which can move along the axial direction of the buffer container. The upper surface of the supply plate is fixed to the bottom surface of the auxiliary supply block V-3-1. Each chamber is matched with a pipeline V-3-4, one end of which is connected to the chamber and the other end to the outside space. The supply plate moves along the axial direction of the buffer container, and can push the nutrient solution inside the chamber through the pipeline.

The rotation mechanism includes a rotating auxiliary column V-4-1, the upper part of which is connected to a connection block via a bearing, and the connection block is fixed to the lower part of the buffer container and is installed coaxially with the buffer container.

The connection block is connected to the large gear V-4-2 via the shaft V-4-6, the large gear meshes with the small gear V-4-3, and the small gear is connected to the motor IV-4-5 via the coupling IV-4-4. The size here only means that the size of the large gear is larger than that of the small gear, and does not limit the specific size. The rotating auxiliary column and the motor are all fixed to the running mechanism, and multiple universal wheels V-4-7 are also installed on the upper part of the rotating auxiliary column, and the universal wheels are in contact with the bottom surface of the buffer container to support the buffer container.

The running mechanism includes a running mechanism housing, which includes a base V-5-2, to which a top cover V-5-1 is fastened, and to which a plurality of running wheels V-5-3 are rotatably connected via a support frame V-5-5, which is connected to a motor V-5-4 attached to the base via a belt drive mechanism, and the motor drives and rotates the running wheels via the belt drive mechanism, thereby realizing the running of the running mechanism. In this embodiment, the plurality of running wheels are installed so as to be in contact with the same circumference.

The rotating mechanism of the microfeed mechanism includes a rotating disk V-2-5, the microfeed mechanism is attached to the rotating disk, the rotating disk is rotatably connected to a center column via a rotating shaft V-2-6, a large gear V-2-1 is fixed to the upper part of the rotating shaft, the large gear meshes with a small gear V-2-2, and the small gear is connected to a motor V-2-3 via a coupling V-2-4. The motor drives the small gear to rotate, and the small gear revolves around the large gear by meshing with the large gear, further rotating the rotating disk, which further realizes switching between different chambers of the buffer container of the microfeed mechanism.

The microfeed mechanism includes a vertically installed second rack V-1-4, which passes through the rotating disk and is slidably connected to the rotating disk. The second rack meshes with the second gear V-1-1, which is connected to the first bevel gear V-1-2, which meshes with the second bevel gear V-1-3, which is connected to the motor V-1-5, which drives the second rack through the second gear to move up and down, and the second rack passes through an opening at the top of the buffer container and contacts the upper surface of the supply auxiliary block, and the second rack drives the supply auxiliary block and the supply plate to move downward and discharge the nutrient solution from the pipeline. By controlling the rotation speed of the second gear, the discharge amount of the nutrient solution can be accurately controlled.

The operating principle of the nutrient solution supply device in this embodiment is as follows.

As shown in FIG. 25, the traveling mechanism drives the entire nutrient solution supplying device to move to a set position, and the rotation mechanism is activated to move the pipeline corresponding to the chamber of the required nutrient solution directly above the solution buffer tank, and the rotation mechanism of the microfeeding mechanism is activated to drive the second rack to move to the top of the corresponding chamber, and the second rack moves downward, discharging the set amount of nutrient solution through the pipeline into the solution buffer tank.

The solution dilution device dilutes and stirs the solution supplied by the solution supply device, and then discharges the diluted water and fertilizer solution through a drainage pump. The structure of the solution dilution device is the same as that of the mixing mechanism, but will not be described in detail here.

The operating principle of the production line in this embodiment is as follows:

The water and fertilizer mixing device sends the generated water and fertilizer solution to the solution buffer tank through the drainage pump, and at the same time, the nutrient solution supply device is used to add a set amount of nutrient solution into the solution buffer tank, the solenoid valve opens, the water and fertilizer solution in the solution buffer tank enters the propulsion shell, the first rack moves, and the set amount of water and fertilizer solution in the propulsion shell is driven by the lever and the propulsion piston into the solution dilution device, where it is further diluted and discharged by the drainage pump of the solution dilution device.

The entire process is automated, greatly reducing staff labor intensity and improving work efficiency.

The above describes the embodiment of the present invention with reference to the drawings, but does not limit the scope of protection of the present invention, but those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative work based on the technical solutions of the present invention are still within the scope of protection of the present invention.

I - Crushing mechanism II - Fertilizer grinding mechanism III - Mixing mechanism IV - Solution supply device V - Nutrient solution supply device VI - Solution dilution device I-1 - Motor I-2 - Coupling I-3 - Material supply pipe I-4 - Crushing shaft I-5 - First housing I-6 - Filtering net II-1 - Material receiving body II-1-1 - First channel II-1-2 - Mounting surface II-1-3 - Material guide surface II-1-4 - Thread connection hole II-2 - Connection body II-2-1 - Cooling liquid flow path II-2-2 - Partition block II-2-3 - Buffer recess II-2-4 - Second channel II-2-5 - Cylinder connection hole II-3 - Propulsion column II-3-1 - Mounting hole II-3-2 - Hemisphere surface II-4 - Propulsion block II-4-1 - Hinge connection plate II-5 - Inner grinding block II-5-1-Groove II-5-2-Coolant flow path II-6-Grinding roller II-7-Bulk material mechanism II-7-1-Coolant pipe II-7-2-Outlet II-8-Cylinder II-9-Rodless cylinder II-10-Fine adjustment mechanism II-10-1-Connecting shaft II-10-2-Threaded bolt II-10-3-Fine adjustment block II-11-Bracket II-12-Drainage pump II-13-Water supply pipe II-14 Coolant pipeline IV-1-Solution transport pipeline IV-2-Solution buffer tank IV-3-Solenoid valve IV-4-Flow meter IV-5-Positioning block IV-6-Propulsion shell IV-7-Lever IV-7-1-Hinge connection hole IV-7-2-First slide groove IV-7-3-Second slide groove IV-8-Propulsion member IV-8-1 - Propulsion piston IV-8-2 - Piston rod IV-8-3 - Reinforcement plate IV-8-4 - Baffle IV-9 - Spring IV-10 - First rack IV-11 - Motor IV-12 - Coupling IV-13 - Worm IV-14 - Worm gear IV-15 - First gear IV-16 - Supply auxiliary mechanism V-1 - Micro-feed mechanism V-1-1 - Second gear V-1-2 - First bevel gear V-1-3 - Second bevel gear V-1-4 - Second rack V-1-5 - Motor V-2 - Micro-feed mechanism rotation mechanism V-2-1 - Large gear V-2-2 - Small gear V-2-3 - Motor V-2-4 - Coupling V-2-5 - Rotating disk V-2-6 - Rotating shaft V-3 - Solution buffer mechanism V-3-1 - Supply auxiliary block V-3-2 - Supply plate V-3-3 - Buffer vessel V-3-4 - Pipeline V-3-5 - Coupling V-3-3-1 - Solution baffle V-3-3-2 - Centre column V-4 - Rotation mechanism V-4-1 - Rotation auxiliary column V-4-2 - Large gear V-4-3 - Small gear V-4-4 - Coupling V-4-5 - Motor V-4-6 - Shaft V-4-7 - Universal wheel V-5 - Travel mechanism V-5-1 - Top cover V-5-2 - Base V-5-3 - Travel wheel V-5-4 - Motor V-5-5 - Support frame VI-1 - Second housing VI-2 - Stirring frame VI-3 - Short stirring blade VI-4 - Long stirring blade VI-5 - Stirring shaft VI-6 - 3rd bevel gear VI-7 - 2nd bevel gear VI-8 - Coupling VI-9 - Motor VI-10 - Drainage pump VI-11 - Outlet pipe VI-12 - Support block VI-13 - 1st bevel gear

Claims (5)

A water and fertilizer mixing device, comprising: a crushing mechanism, a fertilizer grinding mechanism, a bulk material mechanism, and a mixing mechanism;
The fertilizer grinding mechanism includes a material receiving body, a connecting body and an inner grinding block,
the material receiving body has a first channel disposed vertically at an edge of the material receiving body;
The connecting body is fixed to the bottom of the material receiving body, and a second channel is provided in communication with the first channel, and a bottom of the second channel is provided in communication with the buffer recess, and a driving block is provided in the buffer recess, and the driving block is connected to a driving mechanism for driving the radial movement of the connecting body ;
The inner grinding block is fixed to the bottom of the connecting body, and a grinding roller that can move vertically is installed on the outside of the inner grinding block. The driving block pushes the fertilizer that falls into the buffer recess into the gap between the inner grinding block and the grinding roller, so that the fertilizer can be grinded by the vertical movement of the grinding roller;
The water and fertilizer mixing device is characterized in that the crushing mechanism is installed above a fertilizer polishing mechanism for crushing fertilizer and sending the crushed fertilizer to the fertilizer polishing mechanism, the bulk material mechanism is fixed to an upper part of the mixing mechanism and installed below the fertilizer polishing mechanism, the bulk material mechanism is used to introduce the polished fertilizer into the mixing mechanism, and the mixing mechanism is used to mix the polished fertilizer with water. The water and fertilizer mixing device of claim 1, characterized in that the bulk material mechanism adopts a housing structure, the inner grinding block extends into the interior of the bulk material mechanism, the bottom of the bulk material mechanism is an inverted cone structure, an outlet is installed at the lower end of the inverted cone structure, and the bulk material mechanism is connected to the mixing mechanism through the outlet. A production line for preparing a water and fertilizer solution, comprising: a water and fertilizer mixing device, a solution supplying device, and a solution diluting device as described in claim 2, which are installed in sequence, wherein the solution supplying device is capable of receiving the water and fertilizer solution sent from the water and fertilizer mixing device and sending the water and fertilizer solution to the solution diluting device, and the solution diluting device is used to dilute the water and fertilizer solution. 4. The water and fertilizer solution preparation production line according to claim 3, characterized in that: the solution supplying device includes a propelling shell, the outlet of which is connected to the solution diluting device and the supply port is connected to the water and fertilizer mixing device, the propelling shell is provided with a propelling member movable along its axis, an elastic member is provided between the propelling member and the propelling shell, an end of the propelling member extending outside the propelling shell is in sliding contact with the lever through a first sliding groove provided on the lever, one end of the lever is hingedly connected to the positioning block, and the other end is provided with a second sliding groove, a hinge connecting shaft is slidably connected in the second sliding groove, the hinge connecting shaft is hingedly connected to the first rack, and the first rack is engaged with the rotatable first gear. 4. The production line for preparing water and fertilizer solution according to claim 3, further comprising a nutrient solution supplying device, the nutrient solution supplying device including a buffer container, the buffer container being connected to a discharge pipe, a supply auxiliary block and a supply plate being installed in the buffer container, the upper surface of the supply plate being fixed to a bottom surface of the supply auxiliary block, the supply auxiliary block being capable of contacting a second rack that can move vertically, the second rack being capable of driving the supply auxiliary block and the supply plate to move downwardly and discharge the nutrient solution in the buffer container from the discharge pipe, and the second rack being engaged with a rotatable second gear.